#include "napi/native_api.h"
#include "hilog/log.h"

static napi_value Print(napi_env env, napi_callback_info info){
    size_t argc = 1;
    napi_value args[1] = {nullptr};

    napi_get_cb_info(env, info, &argc, args , nullptr, nullptr);

    napi_valuetype valuetype0;
    napi_typeof(env, args[0], &valuetype0);
    
    // 1. 获取全局对象
    napi_value global;
    napi_get_global(env, &global);
    
    // 2. 按名称检索函数
    napi_value jsFunction;
    napi_status status = napi_get_named_property(env, global, "myEtsFunction", &jsFunction);
    if (status != napi_ok || jsFunction == NULL) {
        // 处理函数未找到的情况
        OH_LOG_INFO(LOG_APP, "[ERROR] Function not found!");
        return args[0];
    }
    
    // 3. 调用函数
    napi_value result;
    status = napi_call_function(env, global, jsFunction, 1, &args[0], &result);
    if (status != napi_ok) {
        // 处理调用失败
        OH_LOG_INFO(LOG_APP, "[ERROR] Function call failed");
        return args[0];
    }
    
    return args[0];  
}

static napi_value Add(napi_env env, napi_callback_info info)
{
    size_t argc = 2;
    napi_value args[2] = {nullptr};

    napi_get_cb_info(env, info, &argc, args , nullptr, nullptr);

    napi_valuetype valuetype0;
    napi_typeof(env, args[0], &valuetype0);

    napi_valuetype valuetype1;
    napi_typeof(env, args[1], &valuetype1);

    double value0;
    napi_get_value_double(env, args[0], &value0);

    double value1;
    napi_get_value_double(env, args[1], &value1);

    napi_value sum;
    napi_create_double(env, value0 + value1, &sum);

    return sum;

}

EXTERN_C_START
static napi_value Init(napi_env env, napi_value exports)
{
    napi_property_descriptor desc[] = {
        { "add", nullptr, Add, nullptr, nullptr, nullptr, napi_default, nullptr },
        { "print", nullptr, Print, nullptr, nullptr, nullptr, napi_default, nullptr },
    };
    napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
    return exports;
}
EXTERN_C_END

static napi_module demoModule = {
    .nm_version = 1,
    .nm_flags = 0,
    .nm_filename = nullptr,
    .nm_register_func = Init,
    .nm_modname = "entry",
    .nm_priv = ((void*)0),
    .reserved = { 0 },
};

extern "C" __attribute__((constructor)) void RegisterEntryModule(void)
{
    napi_module_register(&demoModule);
}
